Hi there – I am trying to save an invoice here and it keeps coming up Error Saving Data Oops! There seems to have been a problem. Click on ‘cancel’ below. I have tried three or four times but the same message is coming up – can you advise please, thanks Rachel

Hi there – I am trying to save an invoice here and it keeps coming up Error Saving Data
Oops! There seems to have been a problem. Click on ‘cancel’ below.
I have tried three or four times but the same message is coming up – can you advise please, thanks Rachel